18967740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 41028420

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 33, 44, 55, 58, 60, 66, 87, 110, 116, 132, 145, 165, 174, 220, 290, 319, 330, 348, 435, 580, 638, 660, 870, 957, 991, 1276, 1595, 1740, 1914, 1982, 2973, 3190, 3828, 3964, 4785, 4955, 5946, 6380, 9570, 9910, 10901, 11892, 14865, 19140, 19820, 21802, 28739, 29730, 32703, 43604, 54505, 57478, 59460, 65406, 86217, 109010, 114956, 130812, 143695, 163515, 172434, 218020, 287390, 316129, 327030, 344868, 431085, 574780, 632258, 654060, 862170, 948387, 1264516, 1580645, 1724340, 1896774, 3161290, 3793548, 4741935, 6322580, 9483870, 18967740]

約数ペア:

[(1, 18967740), (2, 9483870), (3, 6322580), (4, 4741935), (5, 3793548), (6, 3161290), (10, 1896774), (11, 1724340), (12, 1580645), (15, 1264516), (20, 948387), (22, 862170), (29, 654060), (30, 632258), (33, 574780), (44, 431085), (55, 344868), (58, 327030), (60, 316129), (66, 287390), (87, 218020), (110, 172434), (116, 163515), (132, 143695), (145, 130812), (165, 114956), (174, 109010), (220, 86217), (290, 65406), (319, 59460), (330, 57478), (348, 54505), (435, 43604), (580, 32703), (638, 29730), (660, 28739), (870, 21802), (957, 19820), (991, 19140), (1276, 14865), (1595, 11892), (1740, 10901), (1914, 9910), (1982, 9570), (2973, 6380), (3190, 5946), (3828, 4955), (3964, 4785)]